This mount allows the user to put any MRD (that has the same base as a Burris, Insight MRDS, or Docter Optic) or with the LT788-2, mount a Trijicon RMR on the tube of a 34mm (or 30mm via included ring step downs) scope. The MRD can be mounted left or right, and the mount can be reversed to clear just about any structural obstacle on the scope. Optimal position is at 45-degrees, between turrets, but this mount allows the user to modify the position at any desired angle, and clamp it tight.